One-dimensional band-edge absorption in a doped quantum wire

被引：10

作者：

Ihara, Toshiyuki ^{[1
]}

Hayamizu, Yuhei

Yoshita, Masahiro

Akiyama, Hidefumi

Pfeiffer, Loren N.

West, Ken W.

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] JST, CREST, Kashiwa, Chiba 2778581, Japan

[3] Bell Labs, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.99.126803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low-temperature photoluminescence-excitation spectra are studied in an n-type modulation-doped T-shaped single quantum wire with a gate to tune electron densities. With a nondegenerate one-dimensional (1D) electron gas, the band-edge absorption exhibits a sharp peak structure induced by the 1D density of states. When the dense 1D electron gas is degenerate at a low temperature, we observe a Fermi-edge absorption onset without many-body modifications.

引用

页数：4

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